British Academy Film Awards
Golden Globe Award
Munro appeared in a BBC TV adaptation of I Capture the Castle (1954), playing the lead part of Rose.
Munro was married to Tony Wright from 1956 until 1959. She married the actor Ian Hendry in 1963, and they had two children, Sally and Corrie. Munro and Hendry were divorced in 1971. Her cousin Ellie Nicol-Hilton was a child actor in 1970s and 1980s.
She had a small part in the Gordon Harker comedy Small Hotel (1957) and started appearing regularly on British TV shows such as ITV Television Playhouse ("One of Us", "Pickup Girl", "Lace on Her Petticoat") and Armchair Theatre ("Trial by Candlelight", "The Deaf Heart").
Munro could be seen in ingenue parts in The Trollenberg Terror (1958) and The Young and the Guilty (1958) and had the romantic lead in a TV adaptation of Berkeley Square (1959) for Hallmark Hall of Fame.
After playing Tommy Steele's love interest in Tommy the Toreador (1959), Munro made a third for Disney, Swiss Family Robinson (1960), again romancing MacArthur.
Munro was the female lead in the science fiction film The Day the Earth Caught Fire (1961), one of her best remembered parts.
She had a good role in Life for Ruth (1962) which earned her a BAFTA nomination for Best Female Actor.
She returned to Armchair Theatre ("Girl in a Bird Cage", "Afternoon of a Nymph") and was top billed in a film for the first time with Bitter Harvest (1963), but it was not a success.
Munro was the female lead in Hide and Seek (1964) and A Jolly Bad Fellow (1964).
Munro travelled to New York to star in a TV adaptation of The Admirable Crichton (1968).
Munro was in ITV Playhouse ("Premiere: Flower Dew"), and Cry Wolf (1969). She had the lead in a series, The Tenant of Wildfell Hall (1969).
Munro died from a heart attack caused by chronic ischaemic heart disease at Whittington Hospital, north London in 1972, aged 38 years. She was cremated and interred at the Golders Green Crematorium.